Warning: Self-proglaimed griefer team hit the server

I was playing on the server after a recent reset, I was one of only about 3 of our server's regulars playing.

A group of several users, 3-5, calling themselves "Team Avolition" Logged in. They proclaimed themselves all part of a team of griefers. THey then proceeded to "Ban" everyone playing from the server by overloading it by spamming "team avolition". I would like to hope that they'll have kicked themselves out of the server as well this way, but I can't be sure. Just thought I'd give a heads up, there may be some grief on the server. My unprotected town will probably be hit pretty hard, having made a road to the wilderness portal v.v